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Multiple medullary venous malformations decreasing cerebral blood flow: case report.
N Tomura1, A Inugami, K Uemura
1Department of Radiology and Nuclear Medicine, Research Institute for Brain and Blood Vessels, Akita, Japan.
Surgical Neurology
|February 1, 1991
Summary
Multiple medullary venous malformations, a rare condition affecting cerebral blood vessels, were identified in a patient. Imaging revealed calcified lesions and reduced blood flow in the right cerebral hemisphere.
Area of Science:
- Neurology
- Neuroradiology
- Vascular Malformations
Background:
- Medullary venous malformations (MVMs) are rare developmental anomalies of cerebral venous drainage.
- Literature review indicates a scarcity of reported cases, highlighting the rarity of multiple MVMs.
Observation:
- A case of multiple MVMs in the right cerebral hemisphere is presented.
- Computed tomography (CT) revealed calcified lesions with linear contrast enhancement, indicative of abnormal dilated vessels.
- Mild atrophic changes were noted in the affected right cerebral hemisphere.
Findings:
- Single-photon emission computed tomography (SPECT) using N-isopropyl-p-(123I) iodoamphetamine demonstrated significantly decreased cerebral blood flow in the right cerebral hemisphere.
- The imaging findings correlate with the presence of multiple MVMs and associated cerebral hypoperfusion.
Implications:
- This case contributes to the limited understanding of multiple MVMs and their clinical presentation.
- The findings underscore the importance of advanced neuroimaging techniques in diagnosing rare cerebrovascular disorders.
- Further research is warranted to elucidate the pathophysiology and long-term outcomes of multiple MVMs.